[kothganesh]

Sorry, but I could've said the 009's sound a lot better when driven by the BHSE ( IMO ), than the two Stax amps I've heard them with.

Haha but at least there I have the KGSShv (a very good build) so not feeling the pinch.

 

[cucera]

My Stax SR-007 MK1 with 717 are imho the best bang for the buck in High End audio. Can it get better? Yes but only marginal with extreme financial input.

So: Don't rob a bank.

 

[AnakChan]

My Stax SR-007 MK1 with 717 are imho the best bang for the buck in High End audio. Can it get better? Yes but only marginal with extreme financial input.

So: Don't rob a bank.

 
How much does the 717 vary from the 727a? I never appreciated the SR-007Mk1 with the SRM-007tA nor SRM-727A but have understood it more with the Electra with XF-2 tubes. But I've never had an opportunity to try the SR-007Mk1/717 combo.

 

[David1961]

Sorry, but I could've said the 009's sound a lot better when driven by the BHSE ( IMO ), than the two Stax amps I've heard them with.

Haha but at least there I have the KGSShv (a very good build) so not feeling the pinch.

Very nice, I've never heard the KGSSHV but I've read good things about it, congrats.

 

[David1961]

My Stax SR-007 MK1 with 717 are imho the best bang for the buck in High End audio. Can it get better? Yes but only marginal with extreme financial input.

So: Don't rob a bank.

Please remember this, AFAIK Stax gear to buy can only be got via a distributor and or a retailer, so if it could be got directly from Stax the cost would probably be a lot less.

 

[raulcf77]

David, the improvement of the 009 with the BHSE compared to the 717 was huge?

 

[David1961]

David, the improvement of the 009 with the BHSE compared to the 717 was huge?

As I've said, it was around two years since I heard the 717, and I didn't hear that amp at the same time as my BHSE, also my K-01 wasn't being used when I heard the 717.

Since using the Psvane EL34PH's with my BHSE, no other headphone combo has come close to what I'm hearing with my 009 / BHSE.
When I first started using the PH's with my BHSE, I said that was the closest to life like sound I've heard from a headphone combo, and head-fier Scruffy7974 thought exactly the same when he heard a live performance CD he brought with him when he visited my place.

Julian ( another head-fier ) is also visiting my place and said he'd be bringing his SR-007mk2 and SRM-717, so I'll be able to tell the difference then on how they compare to the 009 / BHSE, I don't think the Stax combo with touch the 009 / BHSE, but I'll be using my K-01 as source.

 

[kothganesh]

My Stax SR-007 MK1 with 717 are imho the best bang for the buck in High End audio. Can it get better? Yes but only marginal with extreme financial input.

So: Don't rob a bank.

Cucera,
 
I have the 717 as well. I bought the 007mk1 and the 717 together this year. Yes, its a very good combo but I also think that the KGSShv is more than just a marginal upgrade (can't comment on price/performance since I always like much better performance with only slight increases in cost 

). 

 

[Argybargy]

The 717 + 007mk1 was good but there was no Wow! Factor, but definitely better than the 007T. However, a 6S4A modified 007T sounds better than the 717, a bit more lifelike and better depth to the soundstage..

 

[nemomec]

Hello,
 
i need some information about the SRM-007t mod with 6s4a tubes. I find only some pictures in the net but no detailed information which traces are cuted and bridged!?
 
Thanks!
 
picture of my SRM-007t:
 

 
 
picture of modified SRM-007tII:
 

 

[Argybargy]

The 007t pcb is different from the 007tii pcb.
As far as I know there are no detailed instructions. Do a search for the other site, there are some general tips and photos.
Basically what I did was to compare the pinouts of the 6s4a and 6cg7 and closely examine the the traces and where they lead. It became obvious what to cut and what to bridge. If you don't have a decent knowledge of circuits and good soldering skills its best to pay someone to do it. I wouldn't recommend taking a knife to your $1000+ amp unless you are completely confident in what you are doing.

 

[rgs9200m]

Before you modify the 007t try the RCA cleartop tubes in place of the stock tubes.

 

[nemomec]

The 007t pcb is different from the 007tii pcb.
As far as I know there are no detailed instructions. Do a search for the other site, there are some general tips and photos.
Basically what I did was to compare the pinouts of the 6s4a and 6cg7 and closely examine the the traces and where they lead. It became obvious what to cut and what to bridge. If you don't have a decent knowledge of circuits and good soldering skills its best to pay someone to do it. I wouldn't recommend taking a knife to your $1000+ amp unless you are completely confident in what you are doing.

Hello,
 
thanks for the information, 

 engineering and soldering skills are no problem. Where i can find the shematic of the 6s4a tubes and can you describe how the sounds of the SRM-007t are changed after mod?
 
I will use the SRM-007t only for the Lambda Signature and with the standard SRM-007t it has very good resolution, huge soundstage and very good bass but to aggressive highs. The warmer SRM-717 make this better, but with less soundstage.
 
Is tube rolling the better option, now i have Electro Harmonix 6CG7 in the amp?
 
Thanks!

 

[Argybargy]

Just google for the 6S4A pinout diagram.
 
After the mod and with the 007mk1, there is less distortion at higher volumes, the bass is tightened up and the soundstage is bigger.
 
I had both the modded 007t and the 717 and after some listening, I sold the 717.
 
Since you will be using the 007t with lambda sigs, I would definitely recommend tube rolling before trying the drastic mod.
 
As RGS mentioned above, try out the RCA clear tops and also some black plates from the 1950s/ early 1960s.

 

[rgs9200m]

Yep, among other things, the RCA clear tops on the 007t/ii directly targets the sometimes troublesome aggressive highs with the 009s at higher volumes, just what the doctor ordered.
It also makes things more smooth and delicate. I see (well, hear I should say) no downsides over the stock tubes.
 
I am very curious about what you hear if you do the 6S4A mod, so if you report here I would be grateful. Thanks again.